US4893477A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Frozen foodstuffs thawing detector device
Assignee: Individual
•
Filing: 1987-12-07
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Granted: 1990-01-16
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Expires: 2007-12-07
Abstract
Abstract A foodstuffs thawing detector device (1) comprised of a water-filled container (2) in which detection or marker means (5, 8 or 10) is maintained in a stable position by the freezing of the water in the said container (2), where the said detection means will reach a position other than the said stable position when the water in the container melts. A preferred embodiment consists in a container (2) having an interior cavity defined by frusto-pyramidal formations (3) oriented in opposed directions and joined at their smaller bases in line with a central transverse plane (4); preferably, the said formations shall have a square base, and even a truncated arrangement (6) or the like, and detection means comprised of a ball member (5 or 8) having a high specific weight, maintained on the said central transverse plane (4) by the freezing of the water. In an alternative embodiment, the container is a simple pan (9) for the water (10), and the detection means is comprised of an amount of a water-soluble coloring substance (11) which will be poured into the pan once the water contained therein has frozen.
Inventors
- 👤 Jose A. G. Vazquez
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 16:57
CPC Classifications
G; G01; G01N; G01N31/00; G01N31/22; G01N31/229; F; F25; F25D; F25D29/00; F25D29/008
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
62 words
Frozen foodstuffs thawing detector device comprising: a container having sides for holding a liquid; detection or marker means maintained at a position due to the freezing of the liquid said detection or marker means moving to another position along one of the sides when the liquid melts, and comprising a material having a high specific weight and being capable of being magnetized.
Claim 2
Dependent Claim
62 words
Frozen foodstuffs thawing detector device comprising: a container having sides for holding a liquid; detection or marker means maintained at a position due to the freezing of the liquid said detection or marker means moving to another position along one of the sides when the liquid melts, and comprising a material having a high specific weight and being capable of being magnetized.
Claim 3
Dependent Claim
61 words
A thawing detector device comprising: a container for holding a liquid and having sides defining an interior cavity shaped as two frusto-pyramidal formations oriented in opposed directions and joined at their smaller bases in line with a central transverse plane; and detection or marker means maintained on the central transverse plane by the freezing of the liquid contained in said container.
Claim 4
Dependent Claim
61 words
A thawing detector device comprising: a container for holding a liquid and having sides defining an interior cavity shaped as two frusto-pyramidal formations oriented in opposed directions and joined at their smaller bases in line with a central transverse plane; and detection or marker means maintained on the central transverse plane by the freezing of the liquid contained in said container.
Claim 5
Dependent Claim
37 words
Device according to claim 2, characterised in that the container will present an inner configuration defined by two truncated formations oriented in opposed directions and joined at their smaller bases in lane with a central transverse plane.
Claim 6
Dependent Claim
31 words
Device according to claim 2, characterised in that said detection or marker means comprises a spherical member or marker ball will be made comprising a material having a high specific weight.
Claim 7
Dependent Claim
31 words
Device according to claim 2, characterised in that said detection or marker means comprises a spherical member or marker ball will be made comprising a metallic material capable of being magnetised.
Claim 8
Dependent Claim
75 words
Frozen foodstuffs thawing detector device comprising: a container having sides for holding a liquid and having an inner configuration defined by two truncated formations oriented in opposed directions and joined at their smaller bases in line with a central transverse plane; and detection or marker means maintained at a position due to the freezing of the liquid said detection or marker means moving to another position along one of the sides when the liquid melts.
Claim 9
Dependent Claim
75 words
Frozen foodstuffs thawing detector device comprising: a container having sides for holding a liquid and having an inner configuration defined by two truncated formations oriented in opposed directions and joined at their smaller bases in line with a central transverse plane; and detection or marker means maintained at a position due to the freezing of the liquid said detection or marker means moving to another position along one of the sides when the liquid melts.
Claim 10
Dependent Claim
31 words
Device according to claim 6, characterised in that said detection or marker means comprises a spherical member or marker ball will be made comprising a material having a high specific weight.
Claim 11
Dependent Claim
31 words
Device according to claim 6, characterised in that said detection or marker means comprises a spherical member or marker ball will be made comprising a metallic material capable of being magnetised.
Claim 12
Dependent Claim
71 words
Frozen foodstuffs thawing detector device comprising: a container having sides for holding a liquid; detection or marker means maintained at a position due to the freezing of the liquid said detection or marker means moving to another position along one of the sides when the liquid melts, and comprising a material having a high specific weight and being capable of being magnetized, and comprising a metallic material capable of being magnetized.
Claim 13
Dependent Claim
71 words
Frozen foodstuffs thawing detector device comprising: a container having sides for holding a liquid; detection or marker means maintained at a position due to the freezing of the liquid said detection or marker means moving to another position along one of the sides when the liquid melts, and comprising a material having a high specific weight and being capable of being magnetized, and comprising a metallic material capable of being magnetized.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-01-15 | 1993-07-17 | 1994-01-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-01-15 | 1997-07-17 | 1998-01-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-01-15 | 2001-07-17 | 2002-01-16 | $7700.00 | Window Closed / Lapsed |